Influence of structure of polar fragments of oil-soluble corrosion inhibitors on their protective properties

1986 ◽  
Vol 22 (2) ◽  
pp. 65-67
Author(s):  
A. V. Fokin ◽  
M. V. Pospelov ◽  
A. N. Levichev ◽  
Yu. N. Shekhter ◽  
A. Ya. Sergeikin
Keyword(s):  
Corrosion Inhibitors ◽  
Protective Properties

Effects of corrosion inhibitors on protective properties of preservative oil film in the course of aging

1985 ◽  
Vol 21 (10) ◽  
pp. 511-512
Author(s):  
I. A. Prokop'ev ◽  
A. B. �nglin ◽  
N. M. Maryakhin ◽  
L. P. Maiko
Keyword(s):  
Corrosion Inhibitors ◽  
Protective Properties ◽  
Oil Film

scholarly journals Investigation of Carbon Dioxide Corrosion Inhibitors for Steel for Use in Oil and Gas Production

2020 ◽  
Vol 129 (4) ◽  
pp. 14-18
Author(s):  
L. A. Magadova ◽  
◽  
K. A. Poteshkina ◽  
V. D. Vlasova ◽  
M. S. Pilipenko ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Corrosion Inhibitors ◽  
Oil And Gas ◽  
Produced Water ◽  
Gas Production ◽  
Gravimetric Analysis ◽  
Carbon Dioxide Corrosion ◽  
Oil And Gas Production ◽  
Protective Properties ◽  
Industrial Samples

The effect of carbon dioxide corrosion on the pipeline transport system and its protection methods are considered in this article. The corrosion inhibitors represented by imidazoline-based compositions and industrial samples of corrosion inhibitors are used as protective reagents, and the model of produced water saturated with carbon dioxide is used as an aggressive environment. The protective properties of inhibitors and the corrosion rate were evaluated by gravimetric analysis. The paper presents the results of the study of industrial samples and inhibitory compositions developed on the basis of the REC “Promyslovaya himiya”. According to the results of the work, a positive effect of additives of nonionic surfactants on the protective properties of inhibitors was noted.

Solution for chemical cleaning of steel for rubberizing and the protective properties of corrosion inhibitors in it

1984 ◽  
Vol 19 (6) ◽  
pp. 560-564 ◽  
Author(s):  
A. K. Mindyuk ◽  
B. N. Lavrishin ◽  
A. M. Krutsan ◽  
A. D. Tkach ◽  
B. G. Klymkiv ◽  
...  
Keyword(s):  
Corrosion Inhibitors ◽  
Chemical Cleaning ◽  
Protective Properties

scholarly journals Study on efficiency of corrosion inhibitors based on derivatives of isothiuronic salts

2021 ◽  
Vol 11 (2) ◽  
pp. 326-332
Author(s):  
I. A. Ushakov ◽  
V. S. Nikonova ◽  
I. V. Polynskii ◽  
L. G. Knyazeva ◽  
M. M. Polynskaya ◽  
...  
Keyword(s):  
Organic Compounds ◽  
Corrosion Inhibitors ◽  
Covalent Bonds ◽  
Protective Properties ◽  
Nickel Coatings ◽  
Layer Adsorption ◽  
Steel 20 ◽  
Organic Corrosion Inhibitors ◽  
Derivatives Of ◽  
Active Centres

Metals play a pivotal role in industry; their use constantly grows. It is virtually impossible to find an industrial field without the use of metals and their alloys. However, owing to the quality degradation of metal during the operational process, corrosion appears not only on its surface but also under a coating, which leads to its destruction. To avoid this, corrosion inhibitors are necessary. Organic compounds have been widely used as corrosion inhibitors. Many organic corrosion inhibitors have been developed nowadays. In the literature, organic compounds comprising N, O, S and P heteroatoms are described, which reduce corrosion rate. The organic compounds are adsorbed on the metal surface, forming a thin layer. Adsorption occurs either through electrostatic interaction or, in some cases, the formation of covalent bonds. The work aimed to study isothiuronic salts as corrosion inhibitors to evaluate their protective properties using the polarisation curves method. Objects of research were isothiuronic compounds containing two active centres separated by saturated and unsaturated carbon bonds (structures 1-3). In structures 4-7, one isothiuronic fragment has different propylene substituting groups. It has been previously shown that these compounds can act as effective brightening agents when applying nickel coatings. A model solution with a density of 1.12 g/cm3 was prepared to study the corrosion inhibitors. The corrosion inhibitor concentration was 400 mg/L. Studies have shown that the compounds with two isothiuronic moieties do not always exhibit improved properties for inhibiting metal degradation in a corrosive environment. In particular, they showed worsening of the inhibiting properties for samples made of steel 20 and identical properties for that made of steel 3.

scholarly journals Protective Properties and Spectral Analysis of Nitrogen- and Oxygen-Containing Corrosion Inhibitors for Oil Equipment

2012 ◽  
Vol 6 (2) ◽  
pp. 209-217 ◽  
Author(s):  
Arkadiusz Gajek ◽  
◽  
Tadeusz Zakroczymski ◽  
Victoria Romanchuk ◽  
Petro Topilnytsky ◽  
...  
Keyword(s):  
Spectral Analysis ◽  
Corrosion Inhibitors ◽  
Protective Properties

scholarly journals Development of rust modifiers based on sulfite alkalis for corrosion protection of steel

2020 ◽  
Author(s):  
Е.Г. Раковская ◽  
Н.Г. Занько
Keyword(s):  
Corrosion Inhibitors ◽  
Coating Layer ◽  
Paper Industry ◽  
Gravimetric Method ◽  
Steel Corrosion ◽  
Pulp And Paper Industry ◽  
Inhibitory Effect ◽  
Polarization Curves ◽  
Protective Properties ◽  
Paint Coatings

Одним из способов подготовки поверхности под окраску является нанесение модификаторов ржавчины или специальных грунтовок – преобразователей ржавчины. Для улучшения защитных свойств в состав модифицирующих растворов вводят ингибиторы коррозии. Целью данного исследования являлось получение эффективных ингибиторов на основе отходов целлюлозно-бумажной промышленности, а также разработка систем покрытий с применением данных ингибиторов для защиты от коррозии лесных машин. Исследовались составы, приготовленные на основе сульфитного щелока в качестве ингибиторов коррозии стальных образцов без ржавчины, а также изучалась эффективность защитных свойств систем лакокрасочных покрытий, в состав которых входили грунты-модификаторы ржавчины, разработанные на основе сульфитных щелоков и нанесенные на ржавую поверхность с верхним покрывным слоем эмали ПФ-115. С помощью гравиметрического метода и метода снятия поляризационных кривых выявлено, что сульфитные щелока являются ингибиторами коррозии стали в кислой среде. Показано, сульфитные щелока могут использоваться в качестве ингибиторов коррозии стали к преобразователям ржавчины на основе ортофосфорной кислоты. С помощью визуальных и электрохимических методов выявлено, что наилучшими защитными свойствами обладает система преобразователь ржавчины П-2 + щелок + пиперидин. Поляризационные кривые, снятые в водных вытяжках грунтов-модификаторов ржавчины на основе сульфитных щелоков, подтверждают их ингибирующее действие. Выявлено, что наиболее эффективным ингибитором к преобразователю ржавчины П-2 является добавка щелок + пиперидин. One way to prepare the surface for painting is to apply rust modifiers or special primers – rust converters. To improve the protective properties, corrosion inhibitors are introduced into the composition of the modifying solutions. The purpose of this study was to obtain effective inhibitors based on waste from the pulp and paper industry, as well as the development of coating systems using these inhibitors to protect industrial equipment from corrosion. The compositions prepared on the basis of sulfite liquor as corrosion inhibitors of steel samples without rust were studied, and the effectiveness of the protective properties of paint coatings systems, which included rust modifiers primers developed on the basis of sulfite liquors and applied to a rusty surface with an upper coating layer, was studied. Enamel PF-115. Using the gravimetric method and the method of taking polarization curves, it was found that sulfite liquors are inhibitors of steel corrosion in an acidic environment. It has been shown that sulfite liquors can be used as inhibitors of steel corrosion to phosphoric acid-based rust converters. Using visual and electrochemical methods, it was revealed that the P-2 rust converter + liquor + piperidine system has the best protective properties. Polarization curves recorded in aqueous extracts of rust modifying soils based on sulfite liquors confirm their inhibitory effect. It was revealed that the most effective inhibitor to the P-2 rust converter is the addition of lye + piperidine.

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